Cipher key setting system, access point, and cipher key setting method

a technology of access points and cipher keys, applied in wireless communication, digital transmission, transportation and packaging, etc., can solve the problems that the security environment cannot be optimized between wireless lan devices participating in the network, and achieve the effect of relieve the troublesomeness of performing notifications, and prevent the effect of lowering security
US20050238172A1Inactive Publication Date: 2005-10-27BUFFALO CORP LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
BUFFALO CORP LTD
Publication Date
2005-10-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed is a cipher key setting system wherein the access point detects the terminals connected to the wireless LAN through the access point itself repeatedly at each predetermined time, reviews the adopted cipher systems when there are replacements of the terminals participating in the wireless LAN and a decrease in the number of the terminals, and adopts a cipher system according to the guideline ‘selecting the cipher system of the highest security level among the cipher systems that the devices building up the network can commonly adopt’. The system prevents the security setting from being maintained at a needlessly low level, after a certain terminal withdrew from the network or after some terminals were replaced.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a cipher key setting system, an access point, and a cipher key setting method.

[0003] 2. Description of the Related Art

[0004] To build up a communication network with an access point being a repeater for a wireless LAN needs to attain a high security level of the network, which prevents fraudulent intrusion into the network and the leakage of communication data to a third party and so forth. Accordingly, various security techniques on the wireless LAN have been disclosed thus far.

[0005] For example, a technique is proposed which utilizes MAC (Media Access Control) addresses being inherent identification numbers assigned in advance to wireless LAN interfacing devices (for example, wireless LAN adapters) mounted on terminals. This technique registers the MAC addresses to an access point, makes the access point authenticate the MAC addresses accompanied with the accesses from the term...

Claims

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